Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aae157 |
Uncertainty in United States coastal wetland greenhouse gas inventorying | |
Holmquist, James R.1; Windham-Myers, Lisamarie2; Bernal, Blanca1,3; Byrd, Kristin B.4; Crooks, Steve5; Gonneea, Meagan Eagle6; Herold, Nate7; Knox, Sara H.8; Kroeger, Kevin D.6; McCombs, John9; Megonigal, J. Patrick1; Lu, Meng1,15; Morris, James T.10; Sutton-Grier, Ariana E.11,12; Troxler, Tiffany G.13,14; Weller, Donald E.1 | |
2018-11-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Coastal wetlands store carbon dioxide (CO2) and emit CO2 and methane (CH4) making them an important part of greenhouse gas (GHG) inventorying. In the contiguous United States (CONUS), a coastal wetland inventory was recently calculated by combining maps of wetland type and change with soil, biomass, and CH4 flux data from a literature review. We assess uncertainty in this developing carbon monitoring system to quantify confidence in the inventory process itself and to prioritize future research. We provide a value-added analysis by defining types and scales of uncertainty for assumptions, burial and emissions datasets, and wetland maps, simulating 10 000 iterations of a simplified version of the inventory, and performing a sensitivity analysis. Coastal wetlands were likely a source of net-CO2-equivalent (CO(2)e) emissions from 2006-2011. Although stable estuarine wetlands were likely a CO(2)e sink, this effect was counteracted by catastrophic soil losses in the Gulf Coast, and CH4 emissions from tidal freshwater wetlands. The direction and magnitude of total CONUS CO(2)e flux were most sensitive to uncertainty in emissions and burial data, and assumptions about how to calculate the inventory. Critical data uncertainties included CH4 emissions for stable freshwater wetlands and carbon burial rates for all coastal wetlands. Critical assumptions included the average depth of soil affected by erosion events, the method used to convert CH4 fluxes to CO(2)e, and the fraction of carbon lost to the atmosphere following an erosion event. The inventory was relatively insensitive to mapping uncertainties. Future versions could be improved by collecting additional data, especially the depth affected by loss events, and by better mapping salinity and inundation gradients relevant to key GHG fluxes. |
英文关键词 | coastal wetland carbon cycle tidal wetland saltmarsh mangrove tidal freshwater forest greenhouse gas inventory |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000450216000002 |
WOS关键词 | SOIL ORGANIC-CARBON ; SEA-LEVEL RISE ; METHANE EMISSIONS ; NATURAL WETLANDS ; TIDAL WETLANDS ; LIDAR ; MARSHES ; CLIMATE ; TERRESTRIAL ; ELEVATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33167 |
专题 | 气候变化 |
作者单位 | 1.Smithsonian Environm Res Ctr, 647 Contees Wharf Rd, Edgewater, MD 21037 USA; 2.US Geol Survey, Water Mission Area, 345 Middlefield Rd, Menlo Pk, CA 94025 USA; 3.Winrock Int Livestock Res & Training Ctr, 2121 Crystal Dr, Arlington, VA 22202 USA; 4.US Geol Survey, Western Geog Sci Ctr, 345 Middlefield Rd, Menlo Pk, CA 94025 USA; 5.Silvestrum Climate Associates, 150 Seminary Dr, Mill Valley, CA 94941 USA; 6.US Geol Survey, Woods Hole Coastal & Marine Sci Ctr, 384 Woods Hole Rd, Woods Hole, MA 02543 USA; 7.NOAA, Off Coastal Management, 2234 South Hobson Ave, Charleston, SC 29405 USA; 8.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA; 9.NOAA, Baldwin Grp, Off Coastal Management, 2234 South Hobson Ave, Charleston, SC 29405 USA; 10.Univ South Carolina, Belle Baruch Inst, Columbia, SC 29208 USA; 11.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA; 12.Nature Conservancy, Bethesda, MD 20814 USA; 13.Florida Int Univ, Sea Level SOlut Ctr, Miami, FL 33139 USA; 14.Florida Int Univ, Southeast Environm Res Ctr, Inst Water & Environm, Miami, FL 33139 USA; 15.Yunnan Univ, Sch Ecol & Environm Sci, 2 North Cui Hu Rd, Kunming 650091, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Holmquist, James R.,Windham-Myers, Lisamarie,Bernal, Blanca,et al. Uncertainty in United States coastal wetland greenhouse gas inventorying[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(11). |
APA | Holmquist, James R..,Windham-Myers, Lisamarie.,Bernal, Blanca.,Byrd, Kristin B..,Crooks, Steve.,...&Weller, Donald E..(2018).Uncertainty in United States coastal wetland greenhouse gas inventorying.ENVIRONMENTAL RESEARCH LETTERS,13(11). |
MLA | Holmquist, James R.,et al."Uncertainty in United States coastal wetland greenhouse gas inventorying".ENVIRONMENTAL RESEARCH LETTERS 13.11(2018). |
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